Fireplace-heater



E. F. SANFORD.

FIREPLACE HEATER.

APPLICATION FILED JUNE n. 1919.

A TTOR NE YS E. F. SANFORD.

FIREPLACE HEATER-- APPLICATION FILED JUNE n. ma.

Patented Nov. 25, 1919.

g INVENTOR Byd g Jah QwL flaw/ v/im/lf FTC- WITNESS zJ-Ei Q A TTOR NE YS EDGAR F. senroenor ALAMEDA, CALIFORNiA.

FIREPLACE-HEATER.

To all whom it may concern:

Be it known that I, EDGAR F. SANFORD, a citizen of the United States, residing at Alameda, in the county of Alameda and State of California, have invented certain new and useful Improvements in Fireplace- Heaters, of which the following is a specification. .7 v

My invention relates to the class of heaters, adapted to be associated with chimney fireplaces; and:it consists in a novel heater of this type-intended to utilize as much of thewaste heat passin off. through the chimney flue, as possible, by causing it to do useful work, both by direct radiation from metal surfaces and by raising the temperature of air drawn into the. cavities of sald surfaces from the. room and delivered to theroom again in heated condition.

The object of my invention is to provide a simple, easily constructed and readily as sembled and installed device for this pur- V pose, which is both economical to manu facture and is effective in operation.

Referring to ,the accompanying draw-- in s I Figure 1 is a. front elevation of a chimneyface with its fireplace, showing the association of my heater therewith.

Fig. 2 is a vertical. section of the same, taken on the line 22 of Fig. 3.

Fig. 3'is a horizontal section on the line 33 of Fig. 2'.

Fig. 4 is a horizontal section on the line 4.4 of Fig. 2.

'Fig. 5 is a side view. enlarged, of one of the airsduct elbow castings Fig. 6 is an edge view of same.

Fig. 7 is a detail, enlarged, of the means for tightening the air-heating drum onthe elbow castings at the points where the fit is on a concave, as shown in Fig. 2. 1

1 is :the chimney in the face of which is the fireplace 2, with front fender 3 and underlying ash-pit 4-, having the front plate 5 with damper 6.

The face of the chimney above the firelace and below the chimney flue 7 is open ut is partially covered by a metallic faceplate 8, which closes in the upper part of the opening but exposes its lower portion, as at 9, through which to feed the grate and to see the fire and feel its direct effect.

The plate 8 has side legs 10 resting on the fender 3 and said plate is held in place Specification of Letters Patent. Patented Nov, 25, 1919 7 Application filed June 17, 1919. Serial No. 304,758.

" by a border strip 11 behind which its top and sides are slipped, as seen in Figs. 2 and 3. The said plate 8 is thus a metallic hood heated by the uprising products of combustion and capable of radiating heat into the room and said platefurther serves as a support for the interior air-duct and heating members of the device. e

In the legs 10 of the face-plate Sare made the air-inlet openings 12, and to the inner face of theplate, registering with said openings are riveted at '13, Fig. 1, the inwardly extending metallic side air-duct members 14: which at their inner ends have fitted into them the slip flanges 15 of, the air-duct elbow castings 16. These elbow-castings have fitted upon them, by a-slip joint, the metallic air heating drum 17 which extends between said castings, and lies within the chimney opening clear of its walls, thus being exposed on all sides to the fire in the fireplace. With the upper central portion of the airheating drum 17 is connected a communicating air-ductmember 18, Figs. 2 and 3, the forward end of which is secured to the face plate8 behind and registering with an air outlet opening 19 in said plate.

The air-from the room enters the heater through i. the inlet openings 12, passes through the side members. 14,-the elbow castings 16, the heating drum 17 and member 18; and issues into the room again through outlet opening 19. In its course, it is exposed very fully to the fire and the heated products of combustion, and is thoroughly heated.

The device interferes as little'as possible with the chimney draft, and leaves the fire itself to be seen. and enjoyed in front, through the opening 9. The face-plate 8 also serves by radiation to heat theroom, and to the same effect the heated members within the chimney opening contribute.

Thewhole structure can be readily as sembled, its members interfi-tting easily, and by making the slip joints or surfaces of the elbow-castings beveled, as indicated in Figs. 5 and 6, said castings can be fitted to the adjacent members easily and tightly. The drum 1? is held to the elbow castings by the tie bolts 20,'and at that place in the slip joint between the two, where the contour is concave, I employ a staple 21, Figs. 7 and 2, one leg of which fits in a socket 22 in the casting and bears with its other leg upon the drum, sothat by driving said staple in, the drum is made to conform closely to the castmg and make a tight joi t,

- n will be noted that theelbow castings' 1c and the drum 17 which they carry,-are bent over at the top horizontally and forwardly in thedirection of the front plate 8 as shown the beneficial effect of more fully heating the contained air by reason of the. more di rect contact of theuprising products of combustionwithsaid horizontal portion ofcastplate, adapted to be fitted to an plate adapted t'o be fitted to an opening in a chiimiey [above "the fire-place, said face-plate having side air-inlet openings and;fan air-' outlet opening thereabove; s1dea1r-du'ct members secured to said face-plate and re istering with the air inletopenings; an air heating drum communicating with said'side air-duct members, and'iadapted to 11sin the V chimney opening clear of the walls thereof; said drum communicating with the air-outlet opening in the face-plate,

2. A fireplace-heater comprising a face opening in a chimney above the fire-place; said face} plate having side air-inlet openings and an air-outlet opening thereabove; side air-duct members secured to said face-plate and registering with the air-inlet openings; air-duct elbow-castings fitted to the inner ends of the side air-duct members; an air heating drum fitted to said elbow-castings and adapted to lie in the chimney opening clear of thewalls thereof; and ,anair outlet member fitted to and communicating with the top of the heatingidrum, said outlet member being secured to the. face plate and registering withfthe aireoutlet opening thereof. ,7 Qjj I 3. A fireplace-heater comprising a faceplate fitted to and partially covering .an opening in a chimney above the fire-place, said face-plate ofthe opening, and having also an air-Out;

let opening above; side air-ductmembers, se-

i r 7 V V castings; and drum at '16 and 17"111 Figs; and 3. This has in e face-plate.

having legs with air-inletopenings'on each slde of the exposed portion istering with the air-inlet openings thereof; air-duct elbow castings fitted to the inner ends of theside air-duct members; an airheating difuiii fittedto said elbow castings 1 and lying in the chimney openingb'ack of the face plate, said side members, elbow W H p H being clear of ,the fw alls Ofthe chimney opening; and anfair -ontlet member communicating with the upper portion of the drum and with 41A fireplace-heater comprising a faceplate fitted ;to and-{partially covering an opening in'a chimney above' -the ii-re-pla'ce, said fate-plate having-legs ;with"air'-inlet openings on each I side of the exposed portion of the opening, and-having also an air outlet opening above; side air-duct members" secured Ito 'thej-leg's' of the face-platei and registering with the air ijn'let openings there A of Y air-duct elbow castings fitted to *the inner endsf'of the side' air-duct members; an air heating drum fitted to said elbow castings and'ilyin g jin' tlie chimney opening'back V of theface plate, aid side members; elbow castings and drum" being clear of the walls of the chimney opening and said elbow castings and drum having 'theirfupper portion" v bent horizontally forwardly toward the front plateyand ian air-outlet; member co m- V mnnicating withthe upper portion oi; the drum and with the outlet opening-in the face-'plate. I 1, ii a 5. A fireplace-heater comprising a face plate adapted to be fittedto' an'bpeni a chimney above the fireplace, said faceplate having side air-inlet' openings and an air-outlet opening thereabove; side air-duct I members secured to said face-plate and reg istering with the air-inlet openings; an air heating drum in communication 'withsaid side air-duct members;and lying in the chimney opening clear of thew'alls thereof,

said drum having its upper portion bent horizontally torwardly towardfthe face- T Y plate, and communicating with thegair-outlet opening in said plate.

In testimony whereofl have s ignedfniy name to this specification in thepresence of I I two subscribing witnesses.

Witnesses: WM. F; Boo'rin, D. B. Rrommns the outl Op EDGAR r; SANF R 

